Grate for dump pits



'- July 10, 1928.

A. P. WINTER GRA'I'E FOR DUMP PITS Filed March 1926 3 Sheets-Sheet l Jul 10,,1928. 1,676,307

A. P. WINTER GRATE FOR DUMP PITS Filed m arch 192 5 Sheets-Sheet 2 Pv I -I/7m1;0;

' l5 13 mu July 10, 1928; v

A. P. WINTER GRATE FOR DUMP FITS 3 Sheets-Sheet 3 Filed' Marqh 8, 1926 All PatentediJul "10, 1928. I I I I I mnnrs, T SAMUEL'Q; QLQW, Q1

meatanmq $11926; ega oltsf 30 i Fig. 6 is a transverse inventib'h providesfanbrrnally open elosable g ate. particula y dap d? i s iii enfi t ii w vator dump Pit M Q more, fefspeciallyadaptedf for use ihTe nnee- 5 I i i Wi h' flumppitsassociated" ith scales;

I and, enerally; stated; the inventiqn gensi ts eofthe'novel devices and cqlnbinatipnjsf ofI def vices hereinafter described and 'deflhe'df in the claims f In the aecdmpanyin g drawings; Iwthicfli illtsjtrate the inven ibita herein likefcharwere indicate like pales; thr ingheutfthe several views; 'thejgme ifs shQwnTeS' a plie I in partte a sCale' platformiand inpart to' an immediately'adj acent 'pertien'bf the fixed, p tferln or fdrivew 'i v Referring to "thefdrawingszf I Fig; .lis a plan" view 'sllewing'pqitibns of the scale platform and fixed'lplatfm' 'm1'v V. .20 and illustratingthe impreved grate 'str'ucJ tureapplied thereto;

- i a: v' tie l sectionftak'e'n. onthe line 'Y .2 of Fig.1"; .t

Fig. 3 is an enlarge IFi 5 :7 I .Eig. 5 5 a t sverse verti section ,takenonthe line 5 -.-5 of: Figs; j

taken. on the line 6'6' of Fig. 1;..

ving a portionro'f the'sjcaleplatform, one bf the earn bars and the; meant-lag therefer, aaQthe grate slats being r mevedggaildf P rsp ctive Qien grate slats Fi 8 is a fr gmentar j Qf th e-r ilsfer holding the fixed I applied in he fix dl'p atf m tplatfbrm will "first be described. 7

4 F01" the application 5 f thls- I the 4 scale platform is providednear one end and overlying the pit with "an. enlarged rectangilla'r opening 11 thateextends 'ssthan from side to sidethereof; 'Rigildlysecered; to the scalejplatform] at" ll ngitudin li sides pf this Opening 11 are frame preferably angleiirens, set with their lower "flanges f at :their lower edges and eggtended inward. I These frame bars '12 Qrm jth direct supports for the grate slatspr shutb ters 13, which latter, at the smear thei I I I d'fragmehta rf verti-f. 25 tel. Se t n ta en 'on thei' i le 373 Qt-Fig; l Y

' Fig. 4c is a ctionwn "th line' l"l 'io f I I I II I I I 'ser'ews' 17 that work through slots 18formed in said cam' bars and's'erewed into said frame bars. "The central cam bar '16" is t 85 porting beam QfFO-fthe scale platform 9. #:All

1 three of the ca'lnbars 16 are provided with ertical sectien Fig. 7 is a fragmentary I lanIview sh jhvw surfaces located below the respeeti-Ve' over- Ppe tdg fard prevideditvith prbjggti g j r trunnions '14 that are seated inperfor-atians *lfiferm'edin the np'per p01-t l011s f -the Ver tfieal flangesOfthefs aid"hars' 1'21 lt-is' heIj-e l fimpertant tehote' that these slats-" 13, when Fd-ropped 1 or, turned inte- 'oblique pes'itlnns, f

extend'dowhward from their summo s; 's'o' that the trunnion's support theslats hem their upper edges on which a vehicle-wheel is adapted 'te rim. Otherwise 'state,d, "when are'allgned inf'the horizontal plane (If, their, 7' *trunnl'ns', but when droppedfa're 'moveql be- 1 adjacent to'the wheel-engaged por-tiens (if "the slats;

from horizontal or vertical positiensfl pro vi'de sliding 0am; barsflfi. -Assho'wn, there H 'areLt hree of these camharsfpne"a t'eah side 7 v and one atthe center Ofthe opening form'ed 'in'the "scale platform. .Tlie two outside earn bars '16 are slidably connected Thi'ssgives the strongest' pessilele arrar gement, asiivill hereinafter mer'e fully For moving the grate" slats er shutters tothej adjacent frame bar sf12 b'yretaining mounted'to slide on a'centrally iloeatedslipdeepnetches and with imervemng Gain-aeting lugs 16, which latter have ohliqneedge lying grate slats 13; Thethree earn bars 16 maybe given simliltttn eons sliding'rneve- Y ments 7 y it e means, bu shown, this is accomplished by; b s 19 mounted in suitable hearingspn the'scalef platform and provided with depending arms "20; which; 'by links 21, are connect-ed to lugs 22 on the adj acent ends of the respective cam bars16. The rock shaft-1e is shown as provided with an operating letter -28, by

the .rn anipulat-ion of which the three 'c 'aIn] 'bar-smay' be simnltane0us'ly mlovedf 'VVhen the cam slides 167211165'In' ved ferv ward or toward the left in respect to Figs.

l, 2 and 3, thegrate slats 13 will bedropped t'onbliqne positions substantially as shewn' L .in Figs-f was nd th we l hen-1 a p for thednmpi g of g ain or. the li .there eugh, When the ba s 'fe moved rearward r teward re-I I spectito Figs; 1, 3', the cam lugs 16* will be forced under the respective slats 13 and will move the same upward and into the same or approximately thesame "hori (see Figs. land 2), hinged .tothe fixed platzontal planeas' indicated by dotted lines in Fig. 3. It will thus be seen that these grate slats are not caused to overlap at any time, but that when the igrate is-closed by.

movements thereof into'h'orizontal positions,"

there will be slightgaps between the same.

" Thegrate structure applied in the fixed platform comprises fixed obliquely set grate slats .24; tha t arev setinto oblique slots formed in three flanged framebars 26 rigidly secured to the fixed platform at [the sidesof the grate opening and the central member to a fixed beam 10- of said fixed platform.

, For closingtor" closing the openings through the grate formed by the slats 24,

' 'Iprovide door plates 27 hinged to the. platform lOat 28and connected by links 29 to ,bell crank levers 30 shownas fpivoted to bearing brackets 31rigidly secured, one to ;,thebea m1l0and theother to one of the beams at the sideof the grate opening. The depending arms of the bell cranks 30 are connected to a; common operating bar 32,

to one end of which is applied a weight 33 and to the other end of which is connected operating lever 34:. V Vhen theb arv 32 is moved towardthe left in respect toFig 5,

the door plates .27 will be turned down on top of-the grate-slats 24 but whenthe bar ismoved toward the right, said plates 27 'willbe turnedupward and into outwardly and upwardly flaring positions, so that they ,will then aifordhopper plates to guide, the

..grain into and: through the pit opening. 40

For limiting the opening movements of the door plates 27 to positionsillustrated in Fig.

'5, they are shown as provided with pivoted stop arms 85.

, These grates are usually applied to or in connection with scaleplatformsthat are associated'jwitlrWagon dumps, and the arvrangemen-t is usually such that when a wag- ;on is tilted into a dumping position, it will d scharge througlrthe grate in the scale platform, but when a' truck,which is much longer than a wagon, is turned into a dumping -position, the load will be dumped through .the grate in the fixed platform. A truck is usually much wider than a wagon and, hence, the obliquely set door plates 27 will then be useful to assist in guiding the grain .through the grate in the fixed platform. When horses are used to drawv a wagon onto the scale platform, they must pass over the grate structures, and at such time, the door plates 27 mustbe turned down over the grate slats 2 l,and the grate slats 13 must then be turned into their closed positions. l cam bars for operating the grate slats 13,

The

as is evident, afford very rigid supports therefor, so that when the grate is closed,

it will support draft horses and other heavy loads.

The-numeral 36 indicates a floor; plate,

form 10 at 37 and arranged to be normally turneddown flush with the top of said fixed platform into alrecessed seat formed in said platform immediately adjacent to the rear portion of the opening in which the grate bars 24 are 'mounted. This floor plate 36 is adapted to be turned upward an'd'backward into an inclined positionshown' in F ig.

2 and tobe supported in such p'ositionby 'a hinged lug 88 so thatitwill afford a hopper board at the rear of the v grate structure of the fixed platform, 1

What I claim is: 1. The combination with a dumping platform having apit opening, ofa grate mounted in said opening and including grate slats mounted in said opening and movable from substantially horizontal positions in which they close said opening'into' oblique "positions in which they open the same, said slats having pivot-forming 'trunnions' located at the extreme edges'thereof that are uppermost when said slats are in oblique in which they close said'opening into oblique I positions in which they open the same," said slats having pivot-forming trunnions located at the extreme edges thereof that are uppermost when said slats are in oblique positions, and means operative on said slats to simul taneously move the same from open to closed positions, and conversely.- I

'3. The combinationwv'ith a dumping platform having a pit opening, of a grate mounted in said opening and includinggrate slats mounted in said opening and movable from substantially horizontal positionsin which they close said opening into oblique positions in which they open thesame, said slats having their pivots located at theedges thereof that are uppermost when said slats are in oblique positions, "and cam bars slidably mounted under said slats and having cam lugs that engage and support the same in closed positions. V I

4. The structure defined in claim *3 in which said cam bars are laterallys'paced, are mounted for parallel movements and'are combined with means for simultaneously imparting like. sliding movements thereto.

5. The structure defined in claim '3fin which said cam bars are located one at each side and one at the center of the pit'opening and are combined with m'ea n'sfor imparting simultaneous like movements thereto.

6. The combination with; a dumping plat form having a pit opening, of metallic frame" bars secured to the sides ofsaid pit opening, grate slats extended across said pit 5 opening in parallel arrangement and at the ends of their upper edge portions having.

trunnions pivotally seated in said frame bars, and cam bars slid ably mounted on saidframeebars and having cam lugs underlying and operating directly von the respective overlying slats to move the same from approximately horizontal closing positions into oblique opening positions.

, In testimony whereof I aflix m signature. i? 

